Toppin Hill Cave, Western Australia
Speleothems: dark brown soft finely-crystalline aggregates (~ 1mm in in diameter)
First description of cave occurrence: Bridge, P.J. 1973. Urea, a new mineral, and neotype phosphammite from Western Australia. Mineralogical Magazin 39: 346–348
First description of non-cave occurrence: Shepard, C.U. 1835. Aphthitalite. in Treatise on Mineralogy (Second Part), Hezekiah Howe and Co. and Herrick and Noyes New Haven, Connecticut, USA 1: 36-36
Other cave locations & References: Murra-el-elevyn Cave, Western Australia - Bridge, P.J. 1973. Guano minerals from Murra-el-elevyn Cave, Western Australia. Mineralogical Magazin 39: 467–469 Petrogale Cave, Western Australia - Bridge, P.J. & Clarke, R.M. 1983. Mundrabillaite - a new cave mineral from Western Australia. Mineralogical Magazine 47: 80-81 (Min Mag 1977, 41?)
Longitude: 123°56'E